“…The most worrisome aspect of this particular coronary malformation, however, is its unpredictable nature, and this has led some to recommend a surgical intervention in nearly all patients. 44 According to autopsy reviews and small clinical studies, ALCA-R is generally considered to have greater malignant potential than ARCA-L. 45 When ARCA-L is identified, most authors endorse surgical intervention only in symptomatic patients, 21,46 -48 although some believe that the lesion alone is a strong enough indication for surgery. 49 These same groups generally take a more aggressive approach to ALCA-R, although a focus remains on demonstrating ischemia.…”